kind of a fuxord thing to look for but i'm trying to find a low chip count solution for my 4x4x4 led cube. can't find one no matter how hard i google. worst case i'll have to go with 2 separate chips which would kind of suck

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"sure, you can test your combat robot on kittens... But all your going to do is make kitten juice"

Only problem with charlieplexing is the duty cycle. 64 LEDs = 1/64 duty cycle, or something less if you get fancy, but still bad. LEDS under normal current circumstances can only take about 1/8 to 1/10 duty cycle before brightness drops significantly. To overcome that, most charlieplexing I've seen overdrives the LEDs, and if your code gets stuck, you start blowing pixels. And we are all assuming blackbeard is using single color LEDS. It could be RGB.